Package org.eclipse.equinox.p2.query

Interface IQueryResult<T>

All Superinterfaces:

IQueryable<T>, Iterable<T>

All Known Implementing Classes:

CollectionResult, Collector

public interface IQueryResult<T>
extends IQueryable<T>, Iterable<T>

An IQueryResult represents the results of a query.

Since:

2.0

Method Summary

Modifier and Type	Method	Description
boolean	isEmpty()	Returns whether this QueryResult is empty.
Iterator<T>	iterator()	Returns an iterator on the collected objects.
T[]	toArray(Class<T> clazz)	Returns the collected objects as an array
Set<T>	toSet()	Creates a new Set copy with the contents of this query result.
Set<T>	toUnmodifiableSet()	Returns a Set backed by this query result.

Methods inherited from interface org.eclipse.equinox.p2.query.IQueryable

query

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Details

isEmpty

boolean isEmpty()

Returns whether this QueryResult is empty.

Returns:

true if this QueryResult has accepted any results, and false otherwise.

iterator

Iterator<T> iterator()

Returns an iterator on the collected objects.

Specified by:

iterator in interface Iterable<T>

Returns:

an iterator of the collected objects.

toArray

T[] toArray(Class<T> clazz)

Returns the collected objects as an array

Parameters:

clazz - The type of array to return

Returns:

The array of results

Throws:

ArrayStoreException - the runtime type of the specified array is not a super-type of the runtime type of every collected object

toSet

Set<T> toSet()

Creates a new Set copy with the contents of this query result. The copy can be altered without any side effects on its origin.

Returns:

A detached copy of the result.

toUnmodifiableSet

Set<T> toUnmodifiableSet()

Returns a Set backed by this query result. The set is immutable.

Returns:

A Set backed by this query result.